#calculator
{
    padding: 20px;
    width: 420px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 11px;
    color: #666666;
}        
        
        
        .style1
{
    border: 1px ridge #666666;
    background-color: #F7F7F7;
}
        .style2
{
    width: 419px;
    background-color: #FFFFFF;
}
        .style3
        {
            width: 419px;
            height: 23px;
        }
        .style4
        {
            height: 23px;
        }